无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2024, Vol. 56 ›› Issue (8): 19-26.doi: 10.19964/j.issn.1006-4990.2023-0619

• 综述与专论 • 上一篇    下一篇

二维蛭石纳米片的制备及其环境吸附功能的研究进展

熊成荣1,2(), 陈彦1, 汤淼1, 张丰泽1, 周天祥1, 欧阳瑞丰1, 董罡1, 施玮1,2, 曾涛1,2, 陈云霞1,2, 苏小丽1,2,3()   

  1. 1.景德镇陶瓷大学材料科学与工程学院,江西 景德镇 333403
    2.景德镇市环境陶瓷材料重点实验室,江西 景德镇 333403
    3.先进陶瓷材料江西省重点实验室,江西 景德镇 333403
  • 收稿日期:2023-12-26 出版日期:2024-08-10 发布日期:2024-09-26
  • 通讯作者: 苏小丽(1978— ),女,博士,副教授,主要研究方向为环境矿物材料;E-mail:quickly985@163.com
  • 作者简介:熊成荣(2000— ),男,硕士在读研究生;E-mail:1455525032@qq.com
  • 基金资助:
    国家自然科学基金青年基金项目(41402038);江西省教育厅科学技术研究项目(GJJ150903);景德镇市科技计划项目(20202GYZD013-16);景德镇市科技计划项目(20234SF002);景德镇市陶瓷重大专项计划项目(2021TCZD002);广东省矿物物理与材料研究开发重点实验室项目(GLMPM-045)

Research progress on preparation of 2D vermiculite nanosheets and their environmental adsorption of pollutants

XIONG Chengrong1,2(), CHEN Yan1, TANG Miao1, ZHANG Fengze1, ZHOU Tianxiang1, OUYANG Ruifeng1, DONG Gang1, SHI Wei1,2, ZENG Tao1,2, CHEN Yunxia1,2, SU Xiaoli1,2,3()   

  1. 1.School of Materials Science and Engineering,Jingdezhen Ceramic University,Jingdezhen 333403,China
    2.Jingdezhen Key Laboratory of Environmental Ceramic Materials,Jingdezhen 333403,China
    3.Jiangxi Key Laboratory of Advanced Ceramic Materials,Jingdezhen 333403,China
  • Received:2023-12-26 Published:2024-08-10 Online:2024-09-26

摘要:

蛭石是一种层状硅酸盐矿物,具有独特的层状结构、层间离子可交换性、高比表面积、纳米层间域等物化特性,属于天然的非金属矿产资源,来源广泛,价格低廉,可作为良好的吸附材料应用于水体污染物的去除。由于蛭石片层的堆垛,巨大的内比表面难以展现,限制了其对污染物的吸附能力,将天然蛭石剥离成纳米级厚度的二维纳米片是获得巨大内比表面积并提高其吸附性能的有效途径。综述了近年来二维蛭石纳米片的制备方法,包括热膨胀剥离预处理法、物理剥离法、化学剥离法、物理-化学联合剥离技术,总结对比了各种方法的优缺点,并简述了剥离蛭石对部分水体污染物吸附性能的研究进展,为寻求蛭石的高产率剥离方法及剥离蛭石在环境吸附方面的高附加值应用提供思路。最后,对二维蛭石材料的发展趋势进行了展望。

关键词: 蛭石, 二维材料, 剥离, 纳米片, 吸附

Abstract:

Vermiculite(Vrm) is a layered silicate mineral with unique physical and chemical properties such as layered structure,interlayer ion exchangeability,large specific surface area,and nano⁃layer interlayer space.It is widely distributed,abundant in reserves and low in price.Vrm is thus a good environmental adsorbent material for pollutant removal from water bodies.Due to the stacking of vermiculite flake layers,the huge internal specific surface is difficult to be exposed,which limits its adsorption capacity for pollutants.Exfoliating natural vermiculite into two⁃dimensional nanoflakes with nanoscale thickness is an effective way to obtain the huge internal specific surface area and improve its adsorption performance.In this paper,the preparation methods of 2D vermiculite nanosheets in recent years were reviewed,including thermal expansion exfoliating pretreatment method,physical exfoliating method,chemical exfoliating method,and combined physical-chemical exfoliating technology,and the advantages and disadvantages of these methods were summarized and compared.The research progress on the adsorption properties of exfoliated vermiculite to some water pollutants was briefly described.The purpose of this paper was to provide ideas for seeking the high yield exfoliating method of vermiculite and the high value⁃added application of exfoliated vermiculite in environmental adsorption.Finally,the development trend of 2D vermiculite materials was prospected.

Key words: vermiculite, two?dimensional materials, exfoliation, nanosheet, adsorption

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